Navigation system, navigation method, and computer-readable storage medium

Abstract

Navigation systems, methods, and programs acquire evaluation information for each unit interval having a predetermined distance, the evaluation information being an index for evaluating a driver's driving operation of a vehicle, and determine based on a first scale of a map displayed on a display unit, a first distance of an evaluation interval for evaluating the driver's driving operation. The systems, methods, and programs evaluate the driver's driving operation in the evaluation interval having the first distance based on the evaluation information for each unit interval included in the evaluation interval, and display the evaluation result at a position corresponding to the evaluation interval on the map displayed on the display unit.

Description

INCORPORATION BY REFERENCE[0001]The disclosure of Japanese Patent Application No. 2011-148878 filed on Jul. 5, 2011 including the specification, drawings and abstract is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a navigation system, a navigation method, and a computer-readable storage medium.[0004]2. Description of the Related Art[0005]Conventionally, a navigation system is used to guide a vehicle along a travel route. Today, there is an increasing need for fuel-saving driving from the viewpoint of fuel-cost saving and environmental protection and, to satisfy this need, a navigation system is proposed that provides guidance with the aim of fuel-cost reduction in vehicle driving.[0006]As an example of such a system, a portable device and vehicle system is proposed (for example, see Japanese Patent Application Publication No. 2010-182108 (JP-A-2010-182108)). This system serially acq...

AI Technical Summary

Benefits of technology

[0007]The conventional system described above displays only the time-series change in the eco-indicator on / off status. Therefore, when the time-series change in the eco-indicator on / off status is indicated by displaying marks, each indicating the eco indicator on / off status, on the map, the smaller the scale is, that is, the wider the display range of the map is, the smaller the interval between the marks becomes. This results in an overlap of marks, sometimes decreasing user's visibility.

[0012]According to the above configurations, the first distance of an evaluation interval, used for evaluating the driver's driving operation, is determined based on the first scale of the map displayed on the display unit. In addition, the driver's driving operation in the evaluation interval having the first distance is evaluated based on the evaluation information for each unit interval included in the evaluation interval. Then, the control is performed so that the evaluation result in the evaluation interval is displayed at the position corresponding to the evaluation interval on the map displayed on the display unit. This configurations therefore allows the evaluation results, which are displayed on the display unit, to be properly spaced to each other according to the scale of the map, thus allowing the evaluation result of the driver's driving operation to be displayed on the map in an easy to view format.

Problems solved by technology

This results in an overlap of marks, sometimes decreasing user's visibility.

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